reactos/drivers/bus/acpi/ospm/acpisys.c

   1 /* $Id$
   2  *
   3  * PROJECT:         ReactOS ACPI bus driver
   4  * FILE:            acpi/ospm/acpisys.c
   5  * PURPOSE:         Driver entry
   6  * PROGRAMMERS:     Casper S. Hornstrup (chorns@users.sourceforge.net)
   7  * UPDATE HISTORY:
   8  *      01-05-2001  CSH  Created
   9  */
  10 #include <acpi.h>
  11
  12 #define NDEBUG
  13 #include <debug.h>
  14
  15 NTSTATUS
  16 STDCALL
  17 DriverEntry(
  18   IN PDRIVER_OBJECT DriverObject,
  19   IN PUNICODE_STRING RegistryPath
  20 );
  21
  22 #ifdef  ALLOC_PRAGMA
  23
  24 // Make the initialization routines discardable, so that they
  25 // don't waste space
  26
  27 #pragma  alloc_text(init, DriverEntry)
  28
  29 #endif  /*  ALLOC_PRAGMA  */
  30
  31
  32 NTSTATUS
  33 STDCALL
  34 ACPIDispatchDeviceControl(
  35   IN PDEVICE_OBJECT DeviceObject,
  36   IN PIRP Irp)
  37 {
  38   PIO_STACK_LOCATION IrpSp;
  39   NTSTATUS Status;
  40
  41   DPRINT("Called. IRP is at (0x%X)\n", Irp);
  42
  43   Irp->IoStatus.Information = 0;
  44
  45   IrpSp  = IoGetCurrentIrpStackLocation(Irp);
  46   switch (IrpSp->Parameters.DeviceIoControl.IoControlCode) {
  47   default:
  48     DPRINT("Unknown IOCTL 0x%X\n", IrpSp->Parameters.DeviceIoControl.IoControlCode);
  49     Status = STATUS_NOT_IMPLEMENTED;
  50     break;
  51   }
  52
  53   if (Status != STATUS_PENDING) {
  54     Irp->IoStatus.Status = Status;
  55
  56     DPRINT("Completing IRP at 0x%X\n", Irp);
  57
  58     IoCompleteRequest(Irp, IO_NO_INCREMENT);
  59   }
  60
  61   DPRINT("Leaving. Status 0x%X\n", Status);
  62
  63   return Status;
  64 }
  65
  66
  67 NTSTATUS
  68 STDCALL
  69 ACPIPnpControl(
  70   IN PDEVICE_OBJECT DeviceObject,
  71   IN PIRP Irp)
  72 /*
  73  * FUNCTION: Handle Plug and Play IRPs
  74  * ARGUMENTS:
  75  *     DeviceObject = Pointer to PDO or FDO
  76  *     Irp          = Pointer to IRP that should be handled
  77  * RETURNS:
  78  *     Status
  79  */
  80 {
  81   PCOMMON_DEVICE_EXTENSION DeviceExtension;
  82   NTSTATUS Status;
  83
  84   DPRINT("Called\n");
  85
  86   DeviceExtension = (PCOMMON_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
  87
  88   if (DeviceExtension->IsFDO) {
  89     Status = FdoPnpControl(DeviceObject, Irp);
  90   } else {
  91     Status = PdoPnpControl(DeviceObject, Irp);
  92   }
  93
  94   return Status;
  95 }
  96
  97
  98 NTSTATUS
  99 STDCALL
 100 ACPIPowerControl(
 101   IN PDEVICE_OBJECT DeviceObject,
 102   IN PIRP Irp)
 103 {
 104   PCOMMON_DEVICE_EXTENSION DeviceExtension;
 105   NTSTATUS Status;
 106
 107   DPRINT("Called\n");
 108
 109   DeviceExtension = (PCOMMON_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
 110
 111   if (DeviceExtension->IsFDO) {
 112     Status = FdoPowerControl(DeviceObject, Irp);
 113   } else {
 114     Status = PdoPowerControl(DeviceObject, Irp);
 115   }
 116
 117   return Status;
 118 }
 119
 120
 121 NTSTATUS
 122 STDCALL
 123 ACPIAddDevice(
 124   IN PDRIVER_OBJECT DriverObject,
 125   IN PDEVICE_OBJECT PhysicalDeviceObject)
 126 {
 127   PFDO_DEVICE_EXTENSION DeviceExtension;
 128   PDEVICE_OBJECT Fdo;
 129   NTSTATUS Status;
 130
 131   DPRINT("Called\n");
 132
 133   if (PhysicalDeviceObject == NULL)
 134     return STATUS_SUCCESS;
 135
 136   Status = IoCreateDevice(DriverObject,
 137                           sizeof(FDO_DEVICE_EXTENSION),
 138                           NULL,
 139                           FILE_DEVICE_ACPI,
 140                           FILE_DEVICE_SECURE_OPEN,
 141                           TRUE,
 142                           &Fdo);
 143   if (!NT_SUCCESS(Status))
 144   {
 145     DPRINT("IoCreateDevice() failed with status 0x%X\n", Status);
 146     return Status;
 147   }
 148
 149   DeviceExtension = (PFDO_DEVICE_EXTENSION)Fdo->DeviceExtension;
 150
 151   DeviceExtension->Pdo = PhysicalDeviceObject;
 152   DeviceExtension->Common.IsFDO = TRUE;
 153
 154   DeviceExtension->Common.Ldo =
 155     IoAttachDeviceToDeviceStack(Fdo, PhysicalDeviceObject);
 156
 157   DeviceExtension->State = dsStopped;
 158
 159   Fdo->Flags &= ~DO_DEVICE_INITIALIZING;
 160
 161   DPRINT("Done AddDevice\n");
 162
 163   return STATUS_SUCCESS;
 164 }
 165
 166
 167 NTSTATUS
 168 STDCALL
 169 DriverEntry(
 170   IN PDRIVER_OBJECT DriverObject,
 171   IN PUNICODE_STRING RegistryPath)
 172 {
 173   DPRINT("Advanced Configuration and Power Interface Bus Driver\n");
 174
 175   DriverObject->MajorFunction[IRP_MJ_DEVICE_CONTROL] = (PDRIVER_DISPATCH) ACPIDispatchDeviceControl;
 176   DriverObject->MajorFunction[IRP_MJ_PNP] = (PDRIVER_DISPATCH) ACPIPnpControl;
 177   DriverObject->MajorFunction[IRP_MJ_POWER] = (PDRIVER_DISPATCH) ACPIPowerControl;
 178   DriverObject->DriverExtension->AddDevice = ACPIAddDevice;
 179
 180   return STATUS_SUCCESS;
 181 }
 182
 183 /* EOF */